Question

What is your observation of a person wearing thick lenses glasses

Answer 1

it shows that their power is too high.
thick concave lenses-more than -7D
thick convex lenses-more than +7D

       ;hope the ans would be helpful...

Answer 2

The thickness of the lenses depends on several factors:

Prescription Power Prescription is strong, dense lens, all else being equal.

In the foresight the human lens becomes dense on the eye, and the people of the spectrum often get to the edge, so far as you go from the eye.